HP 7475A Service Manual page 59

Section VI
1-A-3-1
6-20
{}
D
HIGH LEVEL
SENSITIVE
ACTIVE PERIOD
-{ }-
u
LOW LEVEL
SENSITIVE ACTIVE PERIOD
-f
Jt
LOW TO HIGH
EDGE SENSITIVE ACTIVE PERIOD
-i
j l
HIGH TO LOW
EDGE SENSITIVE
ACTIVE PERIOD
OUTPUT DELAY
INHIBIT INPUT
-+C
INHIBIT INPUT
INDICATOR SYMBOLS
ACTIVE HIGH inputs and outputs are indicated by the
absence of the polarity indicator
lb.
I or negation symbol
lo).
ACTIVE LOW inputs and outputs are indicated by the
presence of the polarity indicator (
b. I
or negation symbol
(o).
EDGE SENSITIVE (Dynamic) inputs are indicated by
the presence of the dynamic indicator symbol I )I.
The output changes state only after the referenced
input Im) returns to its inactive state. Im is replaced
by appropriate dependency symbol.)
An active high state input prevents the output of that
element from being active.
·An active low state input prevents the output of that
element from being active.
OPEN COLLECTOR OR EMITTER OUTPUT
This output requires some external components to
achieve logic state.
Figure 6-23. ANSI Y32.14 Logic Symbols (Sheet 1 of6)
Model 7475A